.navbar-header{
  height: 10vh;
}

.navbar-brand img{
    max-height: 8vh;
    display: inline-block;
}

.navbar-brand, .navbar-default.affix .navbar-header .navbar-brand{
  font-size: 2.75vh;
}

#portfolio{
  margin-bottom: -2vh;
}

#portfolio img{
  max-width: 33.33333vw;
  height: auto;
}
